YYSXJ-01A Intelligent COD Digestion Apparatus

Position: Home > > Environmental monitoring and analysis > Water organic pollutants > COD digestion > YYSXJ-01A Intelligent COD Digestion Apparatus

YYSXJ-01A Intelligent COD Digestion Apparatus

Product ID：HSYJcodx050

Price: Please inquire PDF Format

Supply Ability:50 SETS/MON

Port:SHENZHEN

Product Introduction
Other information

Model NumberYYSXJ-01A

Brand NameSDYIYUAN

Payment TermsTT，PAYPAL，Alibaba.com Pay

YYSXJ-01A Intelligent COD Digestion Apparatus
The YYSXJ-01A Intelligent COD Digestion Apparatus is a high-efficiency laboratory instrument designed for Chemical Oxygen Demand (COD) sample digestion and pretreatment in environmental water analysis. It is widely used in surface water, industrial wastewater, and domestic sewage testing.
Compliant with HJ 828-2017 (dichromate method), this COD digestion system provides stable heating, precise temperature control, and independent multi-sample processing, ensuring accurate and reproducible COD results.

Product Introduction
The YYSXJ-01A COD digester is engineered to solve common issues in traditional COD analysis such as temperature instability, time deviation, and inconsistent digestion conditions.
With digital temperature control, independent channel operation, and energy-efficient design, it significantly improves laboratory efficiency while reducing operational cost. It is ideal for routine water quality testing and high-throughput COD sample digestion.

Performance Features
•12-position independent COD digestion system
•Fully digital LCD touchscreen control interface
•Independent single-hole temperature and time control
•Wide temperature range: 0–300°C with ±5°C accuracy
•Energy-saving design with ≤1800W total power consumption
•Nickel-chromium alloy heating wire for fast and stable heating
•Air cooling system for simple and low-maintenance operation
•Direct digestion-to-titration workflow (no sample transfer required)
•Cylindrical digestion tubes with integrated air condenser
•Supports continuous or batch COD sample processing
•Compact benchtop design suitable for all laboratories
•Improved reproducibility and reduced analytical error

Working Principle
The YYSXJ-01A operates based on the potassium dichromate reflux digestion method (HJ 828-2017 standard).
•Water samples are placed into cylindrical digestion tubes with reagents.
•Under controlled heating (0–300°C), organic substances are oxidized by potassium dichromate in acidic conditions.
•A reflux condensation system prevents loss of volatile substances.
•After digestion, the remaining oxidant is measured via titration.
•The COD value is calculated based on oxygen equivalent consumption.
This controlled digestion process ensures consistent oxidation reactions and reliable COD measurement results.

Technical Parameters

Parameter	Specification
Product Model	YYSXJ-01A
Test Method	Dichromate method (HJ 828-2017)
Sample Positions	12
Heating Method	Nickel-chromium alloy heating wire
Temperature Range	0–300°C
Temperature Accuracy	±5°C
Display Mode	LCD touchscreen
Cooling Method	Air cooling
Time Control	0–999 min (independent per channel)
Operation Mode	Single-hole independent control
Power Consumption	≤1800 W (adjustable per hole)
Digestion Tubes	Cylindrical digestion bottle with air condenser
Workflow	Direct digestion and titration
Power Supply	AC 220V / 50Hz
Dimensions	450 × 420 × 160 mm

Application Fields
•Environmental monitoring stations
•Municipal wastewater treatment plants
•Industrial effluent testing
•Paper, textile, and printing industries
•Petrochemical and refinery laboratories
•Metallurgy and mining wastewater analysis
•Academic and research laboratories
•Water quality regulatory agencies

Product Comparison

Feature	YYSXJ-01A COD Digester	Traditional COD Heating Device
Sample Capacity	12 independent channels	Limited batch processing
Temperature Control	Digital ±5°C accuracy	Manual or unstable control
Operation Mode	Fully independent channels	Shared heating system
Cooling System	Air cooling system	Often none or inefficient
Energy Efficiency	≤1800W low power design	Higher energy consumption
Workflow	Direct digestion-titration	Transfer required
Stability	High reproducibility	Variable results

FAQ
Q1: What standard does YYSXJ-01A comply with?
It complies with HJ 828-2017 for COD determination using the dichromate method.
Q2: How many samples can it process at once?
It supports 12 independent digestion positions.
Q3: Does each channel operate independently?
Yes, each digestion position has independent temperature and time control.
Q4: Is it suitable for routine laboratory use?
Yes, it is designed for routine environmental and industrial COD testing.
Q5: What cooling method does it use?
It uses an air cooling system for simple maintenance and stable operation.

Summary
The YYSXJ-01A Intelligent COD Digestion Apparatus is a reliable and efficient solution for COD sample digestion and water quality testing. With 12 independent channels, digital temperature control, and low-energy design, it provides accurate, stable, and reproducible COD results, making it ideal for environmental monitoring, industrial wastewater analysis, and laboratory research applications.

FAQ
Q1: What standard does YYSXJ-01A comply with?
It complies with HJ 828-2017 for COD determination using the dichromate method.
Q2: How many samples can it process at once?
It supports 12 independent digestion positions.
Q3: Does each channel operate independently?
Yes, each digestion position has independent temperature and time control.
Q4: Is it suitable for routine laboratory use?
Yes, it is designed for routine environmental and industrial COD testing.
Q5: What cooling method does it use?
It uses an air cooling system for simple maintenance and stable operation.